title: Erythrophleum and digitalis principles comparative effects on heart contractile force.
mesh_terms: D004070:Digitalis; D004071:Digitalis Glycosides; D006321:Heart / Q000187:drug effects*; D006801:Humans; D009200:Myocardial Contraction
chemical_list: D004071:Digitalis Glycosides
keywords: DIGITALIS/effects; HEART/effect of drugs on